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For example:<p>
<ul><code>
set parea 0.75 10.5 3.875 4.25<br>
set grads off<br>
set gxout tserwx<br>
set digsiz 0.11<br>
d wx (stid=79001)</code></ul><p>
where the grid <code>wx</code> contains codes for weather symbols
